docs: Improve CLI documentation for creating cookbooks command (#541)

* Improve CLI documentation for creating cookbooks command

* Adding the email documentation

* Change minimum char size

* Automate the min field size requirements

* Restore go.mod, go.sum

x/pylons/client/cli/tx_cookbook.go

@@ -1,6 +1,8 @@
 package cli
 
 import (
+	"fmt"
+
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
 
 	"github.com/spf13/cobra"
@@ -15,10 +17,29 @@ import (
 )
 
 func CmdCreateCookbook() *cobra.Command {
+
+	longText := fmt.Sprintf(`
+Create a new cookbook using the following arguments :
+
+* id : a unique identifier to your cookbook. Only letters, numbers and underscore (should not be the first character) allowed 
+* name: a human readable name for your cookbook, with a minimum of %d characters long 
+* description : A more detailed description of your cookbook. Minimum %d chars long
+* developer : name of the developer
+* version : the version of the cookbook in semVer format, ex.: v0.0.0
+* support-email : a valid email
+* enabled : whether or not the cookbook is enabled
+
+Note that the --from flag is mandatory, as indicates the key to be used to sign the transaction. 
+
+		`, types.DefaultMinFieldLength, types.DefaultMinFieldLength)
 	cmd := &cobra.Command{
 		Use:   "create-cookbook [id] [name] [description] [developer] [version] [support-email] [enabled]",
 		Short: "create new cookbook",
-		Args:  cobra.ExactArgs(7),
+		Long:  longText,
+		Example: `
+pylonsd tx pylons create-cookbook "loud123456" "Legend of the Undead Dragon" "Cookbook for running pylons recreation of LOUD" "Pylons Inc" v0.3.1 [email protected] true --from joe
+			`,
+		Args: cobra.ExactArgs(7),
 		RunE: func(cmd *cobra.Command, args []string) error {
 			id := args[0]
 			argsName := args[1]